Table 8. Stm32L151Xe And Stm32L152Xe Pin Definitions - STMicroelectronics STM32L151RE Manual

STM32L151xE STM32L152xE
Name
Notes
Pin
functions
Pins
1 B2 1 - D6
2 A1 2 - D7
3 B1 3 - C8
4 C2 4 - B9
5 D2 5 - E6
6 E2 6 1 E7
7 C1 7 2 C9
8 D1 8 3 D8
9 E1 9 4 D9
10 D6 - -
11 D5 - -
12 D4 - -
13 E4 - -
14 F3 - -
15 F4 - -
Table 7. Legend/abbreviations used in the pinout table (continued)
Abbreviation
Unless otherwise specified by a note, all I/Os are set as floating inputs during
and after reset
Alternate
Functions selected through GPIOx_AFR registers
functions
Additional
Functions directly selected/enabled through peripheral registers
functions

Table 8. STM32L151xE and STM32L152xE pin definitions

Pin name
PE2 I/O
PE3 I/O
PE4 I/O
PE5 I/O
PE6-
I/O
WKUP3
(3)
V S
LCD
PC13-WKUP2 I/O
PC14-
I/O
(4)
OSC32_IN
PC15-
I/O
OSC32_OUT
- PF0 I/O
- PF1 I/O
- PF2 I/O
- PF3 I/O
- PF4 I/O
- PF5 I/O
Main
(2)
function
(after
reset)
TIM3_ETR/LCD_SEG38/
FT PE2
TIM3_CH1/LCD_SEG39/
FT PE3
FT PE4
FT PE5
FT PE6
- V
LCD
FT PC13
TC PC14
TC PC15
FT PF0
FT PF1
FT PF2
FT PF3
FT PF4
FT PF5
DocID025433 Rev 8
Definition
Pin functions
Alternate functions
TRACECLK
TRACED0
TIM3_CH2/TRACED1
TIM9_CH1/TRACED2
TIM9_CH2/TRACED3
-
-
-
-
-
-
-
-
-
-
Pin descriptions
Additional
functions
-
-
-
-
WKUP3/
RTC_TAMP3
-
WKUP2/RTC_TA
MP1/RTC_TS/
RTC_OUT
OSC32_IN
OSC32_OUT
-
-
-
-
-
-
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